actually, I changed it completely 3 times already in my thoughts. I finally "see the light"(tm) and will implement it on a weekend. I think about converting SCGI-part to a simple "driver" and move all http-related stuff to a separate driver-agnostic set of classes. This way, I would be able to implement FastCGI as anther driver without altering applications. If you have any better ideas - let me know.

He also includes a link to another sample application that uses the functionality to create a pie chart (including some benchmarks) with the help of the eZ components framework.

I finally found some time (and inspiration) to do something in direction of implementing FastCGI the way I see it. Initially, I was going to implement FastCGI-functions in php-extension, but that would require more time than I currently have, so I started with a simplier task: I implemented SCGI protocol (which is way simplier than FastCGI) in pure php-code (which is easier, again, and let's me change API faster, during development).

The result is this project (hosted on the Google Code site) that allows you to use it with any SCGI-enabled server (apache and lighttpd. He includes a source code example to clarify its use.